Interregional Seminar on Development Planning & Naciones Unidas. (1967). Planning the external sector: Techniques, problems and policies : report on the first Interregional Seminar on Development Planning, Ankara, Turkey, 6-17 September 1965. United Nations.
Cita Chicago Style (17a ed.)Interregional Seminar on Development Planning y Naciones Unidas. Planning the External Sector: Techniques, Problems and Policies : Report on the First Interregional Seminar on Development Planning, Ankara, Turkey, 6-17 September 1965. New York: United Nations, 1967.
Cita MLA (9a ed.)Interregional Seminar on Development Planning y Naciones Unidas. Planning the External Sector: Techniques, Problems and Policies : Report on the First Interregional Seminar on Development Planning, Ankara, Turkey, 6-17 September 1965. United Nations, 1967.